/*****************************************************************************/
/*                                                                           */
/*                                  lynx.h                                   */
/*                                                                           */
/*                     Lynx system-specific definitions                      */
/*                                                                           */
/*                                                                           */
/*                                                                           */
/* (C) 2003      Shawn Jefferson                                             */
/*                                                                           */
/* Adapted with many changes Ullrich von Bassewitz, 2004-10-09               */
/*                                                                           */
/*                                                                           */
/*                                                                           */
/* This software is provided 'as-is', without any expressed or implied       */
/* warranty.  In no event will the authors be held liable for any damages    */
/* arising from the use of this software.                                    */
/*                                                                           */
/* Permission is granted to anyone to use this software for any purpose,     */
/* including commercial applications, and to alter it and redistribute it    */
/* freely, subject to the following restrictions:                            */
/*                                                                           */
/* 1. The origin of this software must not be misrepresented; you must not   */
/*    claim that you wrote the original software. If you use this software   */
/*    in a product, an acknowledgment in the product documentation would be  */
/*    appreciated but is not required.                                       */
/* 2. Altered source versions must be plainly marked as such, and must not   */
/*    be misrepresented as being the original software.                      */
/* 3. This notice may not be removed or altered from any source              */
/*    distribution.                                                          */
/*                                                                           */
/*****************************************************************************/

#ifndef _LYNX_H
#define _LYNX_H

/* Check for errors */
#if !defined(__LYNX__)
#  error This module may only be used when compiling for the Lynx game console!
#endif

/* Color definitions */
#define COLOR_TRANSPARENT       0x00
#define COLOR_BLACK             0x01
#define COLOR_RED               0x02
#define COLOR_PINK              0x03
#define COLOR_LIGHTGREY         0x04
#define COLOR_GREY              0x05
#define COLOR_DARKGREY          0x06
#define COLOR_BROWN             0x07
#define COLOR_PEACH             0x08
#define COLOR_YELLOW            0x09
#define COLOR_LIGHTGREEN        0x0A
#define COLOR_GREEN             0x0B
#define COLOR_PURPLE            0x0C
#define COLOR_BLUE              0x0D
#define COLOR_LIGHTBLUE         0x0E
#define COLOR_WHITE             0x0F

/* TGI color defines (default palette) */
#define TGI_COLOR_TRANSPARENT   COLOR_TRANSPARENT
#define TGI_COLOR_BLACK         COLOR_BLACK
#define TGI_COLOR_RED           COLOR_RED
#define TGI_COLOR_PINK          COLOR_PINK
#define TGI_COLOR_LIGHTGREY     COLOR_LIGHTGREY
#define TGI_COLOR_GREY          COLOR_GREY
#define TGI_COLOR_DARKGREY      COLOR_DARKGREY
#define TGI_COLOR_BROWN         COLOR_BROWN
#define TGI_COLOR_ORANGE        COLOR_BROWN
#define TGI_COLOR_PEACH         COLOR_PEACH
#define TGI_COLOR_YELLOW        COLOR_YELLOW
#define TGI_COLOR_LIGHTGREEN    COLOR_LIGHTGREEN
#define TGI_COLOR_GREEN         COLOR_GREEN
#define TGI_COLOR_PURPLE        COLOR_PURPLE
#define TGI_COLOR_BLUE          COLOR_BLUE
#define TGI_COLOR_LIGHTBLUE     COLOR_LIGHTBLUE
#define TGI_COLOR_WHITE         COLOR_WHITE

/* No support for dynamically loadable drivers */
#define DYN_DRV 0

/* Addresses of static drivers */
extern void lynx_stdjoy_joy[];        /* Referred to by joy_static_stddrv[] */
extern void lynx_comlynx_ser[];       /* Referred to by ser_static_stddrv[] */
extern void lynx_160_102_16_tgi[];    /* Referred to by tgi_static_stddrv[] */

/* Sound support */
void lynx_snd_init (void); /* Initialize the sound driver */
void lynx_snd_pause (void); /* Pause sound */
void lynx_snd_continue (void); /* Continue sound after pause */
void __fastcall__ lynx_snd_play (unsigned char channel, unsigned char *music); /* Play tune on channel */
void lynx_snd_stop (void); /* Stop sound on all channels */
void __fastcall__ lynx_snd_stop_channel (unsigned char channel); /* Stop sound on all channels */
unsigned char lynx_snd_active(void); /* Show which channels are active */

/* Cartridge access */
void __fastcall__ lynx_load (int file_number); /* Load a file into RAM using a zero-based index */
void __fastcall__ lynx_exec (int file_number); /* Load a file into ram and execute it */

/* EEPROM access */
unsigned __fastcall__ lynx_eeprom_read (unsigned char cell); /* Read a 16 bit word from the given address */
unsigned __fastcall__ lynx_eeprom_write (unsigned char cell, unsigned val); /* Write the word at the given address */
void __fastcall__ lynx_eeprom_erase (unsigned char cell); /* Clear the word at the given address */
unsigned __fastcall__ lynx_eeread (unsigned cell); /* Read a 16 bit word from the given address 93C46, 93C66 or 93C86 */
unsigned __fastcall__ lynx_eewrite (unsigned cell, unsigned val); /* Write the word at the given address 93C46, 93C66 or 93C86 */

/* TGI extras */
#define tgi_sprite(spr) tgi_ioctl(0, spr)
#define tgi_flip() tgi_ioctl(1, (void*)0)
#define tgi_setbgcolor(bgcol) tgi_ioctl(2, (void*)(bgcol))
#define tgi_setframerate(rate) tgi_ioctl(3, (void*)(rate))
#define tgi_busy() tgi_ioctl(4, (void*)0)
#define tgi_updatedisplay() tgi_ioctl(4, (void*)1)
#define tgi_setcollisiondetection(active) tgi_ioctl(5, (void*)(active))

/* Hardware definitions */
#include <_mikey.h>
#define MIKEY (*(struct __mikey *)0xFD00)

#define _MIKEY_TIMERS (*(struct _mikey_all_timers *) 0xFD00)  /* mikey_timers[8] */
#define _HBL_TIMER (*(struct _mikey_timer *) 0xFD00)          /* timer0 (HBL) */
#define _VBL_TIMER (*(struct _mikey_timer *) 0xFD08)          /* timer2 (VBL) */
#define _UART_TIMER (*(struct _mikey_timer *) 0xFD14)         /* timer4 (UART) */
#define _VIDDMA (*(unsigned int *) 0xFD92)                    /* DISPCTL/VIDDMA */

#include <_suzy.h>
#define SUZY (*(volatile struct __suzy*)0xFC00)

/* Masks for joy_read */
#define JOY_UP_MASK             0x80
#define JOY_DOWN_MASK           0x40
#define JOY_LEFT_MASK           0x20
#define JOY_RIGHT_MASK          0x10
#define JOY_BTN_1_MASK          0x01
#define JOY_BTN_2_MASK          0x02

#define JOY_BTN_A_MASK          JOY_BTN_1_MASK
#define JOY_BTN_B_MASK          JOY_BTN_2_MASK

#define JOY_BTN_A(v)            ((v) & JOY_BTN_A_MASK)
#define JOY_BTN_B(v)            ((v) & JOY_BTN_B_MASK)

/* End of lynx.h */
#endif
